Cutting device assembly

Abstract

The invention relates to a cutting device assembly comprising a cutting device (1), in particular for a machine, for derinding or membrane-skinning, the cutting device (1) having a blade (2) which extends along a longitudinal axis (L), the blade (2) having at least one elongate cutting edge (3) which extends along the longitudinal axis (L) of the blade (2) and has a cutting edge (3a), two sides (4a, 4b) running transversely to the cutting edge (3), in particular two lateral edges running transversely to the cutting edge (3), and a flat of the blade (5), the cutting edge (3) and the two sides (4a, 4b) delimiting the flat of the blade (5), and the cutting edge (3) being connected to at least one of the two sides (4a, 4b) via a rounded portion (6).

Description

[0001] Cutting device arrangement

[0002] Technical area

[0003] The present invention relates to a cutting device for derinding or membrane skinning. The device comprises a blade extending along a longitudinal axis and having a cutting edge.

[0004] Furthermore, the present invention relates to a packaging for an aforementioned cutting device for derinding and membrane skinning.

[0005] Furthermore, the present invention relates to a cutting device arrangement with the aforementioned cutting device, which is accommodated in the aforementioned packaging.

[0006] Background of the invention

[0007] A cutting device for derinding and skinning is used to remove the skin from fresh meat. It is used in the food industry, for example, for meat, fish, and poultry. Such devices increase the efficiency of meat processing. The cutting geometries guarantee precise cuts that optimize meat yield. A second skinning stage is not required. For example, a cutting device could be a derinding blade. Advantages of derinding blades include reliable cutting quality, suitability for common machines, expanded geometry to meet specifications, and less manual rework.

[0008] It has been known to package cutting devices for derinding and membrane skinning in plastic packaging. However, plastic is partially recyclable. On the other hand, conventional plastic packaging is designed to be transparent on at least one side so that a user can see the path and orientation of the blade through the plastic packaging when unpacking the cutting device. In particular, the user can see the blade parameters, in particular the model number, through the plastic packaging, as these are usually lasered onto the blade. The transparent plastic packaging reduces the risk of injury, especially when handling blades with sharp edges, because the user can see exactly how to remove the cutting device from the packaging without injuring themselves on the sharp edge.Since recognizing blade alignment and selecting the correct blade model are very important features for regular and safe blade replacement, users stick to this solution and have so far rejected alternatives.

[0009] Description of the invention

[0010] Based on this situation, it is an object of the present invention to provide better packaging for cutting devices for derinding / membrane skinning. In particular, cutting devices for derinding and membrane skinning should be packaged in packaging that is more easily recycled than conventional plastic packaging. In particular, the packaging should be just as secure as conventional transparent plastic packaging. In other words, the risk of injury to the user when unpacking the cutting device should be just as low. Furthermore, the transport of such cutting devices should be safer, even when transported in paper packaging.

[0011] The object of the invention is achieved by the features of the independent main claims. Advantageous embodiments are specified in the subclaims. Where technically feasible, the teachings of the subclaims can be combined arbitrarily with the teachings of the main and subclaims.

[0012] In particular, the object is accordingly achieved by a cutting device arrangement with a cutting device for derinding or membrane skinning. The cutting device is therefore in particular a derinding cutting device and / or membrane skinning cutting device. The cutting device has a blade extending along a longitudinal axis. The blade has: at least one elongated cutting edge extending along, in particular parallel to, the longitudinal axis of the blade, two sides, in particular side edges, running transversely to the cutting edge, and a blade blade. The cutting edge and the two sides, in particular side edges, delimit the blade blade. The cutting edge is connected to at least one of the two sides via a rounded portion.

[0013] Derinding cutters are used in meat processing, particularly for the precise removal of rind from pork in slaughterhouses and butcher shops. They are used in both semi-automatic and fully automatic machines to ensure a consistent, gentle separation of fat and skin. In industrial production, they are used for high throughput volumes, while manual derinding knives with optimized blade shapes are also used in artisanal operations. They are also used in fish and poultry processing for the precise and efficient removal of skin.

[0014] Carpet knives and knives generally used in trades are unsuitable for derinding or membrane skinning because they do not meet the specific requirements of these tasks. They usually have a straight, fixed blade with a thin, stable cutting edge designed to cut through hard or fibrous materials such as carpet or plastic. Derinding, on the other hand, requires a curved or rounded blade that can glide under the skin or membrane without damaging the underlying tissue. In addition, derinding knives often have a polished or non-stick coated cutting edge to reduce the adhesion of fat or connective tissue. The special grinding angle ensures controlled, gliding cuts, whereas a carpet knife requires a much more aggressive cutting edge for firm material resistance.A blade optimized for derinding would be unsuitable for craft work, as it would lack the necessary stability and cutting edge for precise, powerful cuts in resistant materials. Conversely, a typical carpet knife blade could penetrate too deeply into the fabric during skinning, tearing it rather than separating it cleanly. Another problem is that carpet knives offer no protective features against excessive penetration, whereas derinding blades are optimized precisely for this control. Therefore, the two blade types differ fundamentally in their shape, intended use, and material processing. Choosing the right blade is crucial to achieving optimal cutting results and avoiding material loss.

[0015] This cutting device assembly is for derinding and membrane skinning, particularly for a machine. The blade is typically replaced as soon as it is worn. Hygiene is particularly important in food processing. Dull or damaged blades can roughen surfaces and thus promote the growth of microorganisms. In mechanical derinding and membrane skinning machines in larger plants, individual blades are replaced regularly to avoid production interruptions. These blades are often designed for quick replacement, as downtime is costly.

[0016] Advantageous aspects of the claimed invention are explained below, and preferred modified embodiments of the invention are further described below. Explanations, particularly regarding advantages and definitions of features, are essentially descriptive and preferred, but not limiting, examples. If an explanation is limiting, this will be expressly stated.

[0017] In other words, the cutting edge of the blade is rounded at at least one of its ends. The rounding can be designed to suit various conditions. It is preferred that the rounding(s) delimit(s) a cutting edge of the cutting edge. In other words, in the area of ​​the rounding(s), the blade is not intended for cutting, but only at its cutting edge.

[0018] The cutting device assembly with the cutting device can be used in a handheld knife or as a machine component in a derinding and membrane skinning machine. The location of use determines the design of the cutting edge, whether it extends to the rounded edge or along the rounded edge. In hand-held cutting device assemblies with corresponding derinding devices, such as those used in butcher shops, the rounded edge serves solely to guide the blade, allowing it to glide under the rind or membrane in a controlled manner. It has no cutting effect itself; instead, it prevents the blade from penetrating too deeply into the meat or becoming caught in the tissue. The actual cutting action occurs along the cutting edge, which adjoins the rounded edge, allowing the material to be separated precisely.

[0019] In machine-guided cutting device arrangements with corresponding derinding devices, such as those used in automatic meat processing plants, the rounded edge can have an active cutting edge. Since the machines do not allow for manual pressure equalization, a sharpened rounded edge ensures continuous and even separation of the rind across the entire length of the blade. Here, the rounded edge is not only used for guidance but can also contribute to the even cutting of the material. In both cases, the blade is optimized to cleanly separate the rind from the meat without causing unwanted damage. While in hand knives the rounded edge does not cut but merely guides the movement, in machine knives it can play an active role in the cutting process.

[0020] For mechanical derinding devices, the invention preferably requires that the rounded portion(s) delimit(s) a cutting edge of the cutting edge. In other words, in the area of ​​the rounded portion(s), the blade is not intended for cutting, but only along its cutting edge. The cutting edge then runs up to the rounded portion. In other words, in the mechanically operated version of the derinding device, there is no cutting edge in the area of ​​the rounded portions. This is different for manually operated derinding devices. In this case, the cutting edge can also extend in the area of ​​the rounded portion(s) and run along the rounded portion. In other words, in a hand-held derinding device, the rounded portion can be provided to comprise part of the cutting edge.In other words, a mechanical derinding device does not have an active cutting edge, whereas a hand-held derinding device has an active cutting edge on at least one of the rounded edges.

[0021] The rounding of the cutting edge allows the use of packaging containing fibers, particularly wood fibers. In other words, the cutting device of the invention is suitable for being arranged in a packaging made of a fibrous material. The fibrous material can be paper. Only the rounded corners of the cutting device and the tear strength of the fibrous material selected according to the rounding of the corners allow the cutting device to be packaged with the fibrous material. The heavier the cutting device, the rounder the radius.

[0022] The rounding on the blade prevents the blades of the cutting device from piercing the fibrous material like a needle if the shipping carton is thrown or suffers a strong impact, for example by falling on the floor.

[0023] A user can safely handle the cutting device assembly with the cutting device even in a completely opaque package. The packaging then becomes part of the cutting device assembly. In detail, the rounded blade minimizes the risk of injury, even if the user cannot visually determine the exact position of the blade in the opaque, fiber-containing package. By reducing peak load, the rounded edge prevents accidental puncture of the packaging material, thus maintaining the integrity of the package. This not only ensures safe handling during opening but also better protection during storage and transport. Furthermore, the combination of the rounded blade and robust packaging contributes to sustainable use, as fewer additional protective measures are required.

[0024] The cutting device assembly may, for example, have attachment sections for attachment to a derinding and / or membrane skinning machine. Alternatively, the cutting device assembly may have an attachment section for attachment to a handle, so that the cutting device assembly is part of a manually operated hand knife.

[0025] In summary, the invention enables the use of completely non-transparent packaging materials for the first time.

[0026] The cutting edge is the part of the blade that performs the cutting function. It may be a specially designed, sharp-edged area of ​​the blade.

[0027] In a plan view of the body of the cutting device, a side forms the boundary of a surface in a cross-sectional plane. This is always a cross-sectional plane perpendicular to the longitudinal axis of the blade, i.e. perpendicular to the greatest direction of extension of the blade. A particular edge, be it a side edge or a cutting edge, is then the line on the body at which two surfaces are demarcated from one another. The boundary is visible via an abrupt or discontinuous change in the gradient of the blade surface, e.g. a step, which is formed by the edge. A side can be an edge. Conversely, however, not every edge is a side. In short, a side or side line delimits a surface. An edge delimits the surface of a square / angular body.

[0028] Preferably, the sides, in particular side edges, extending transversely to the cutting edge, in particular the cutting edge, together with the cutting edge of the cutting edge or the cutting edge, form an outer contour edge of the blade. The sides, in particular side edges, each merge into the cutting edge of the cutting edge. The rounding can be provided in a transition region where the sides or side edges merge into the cutting edge or cutting edge.

[0029] The description "transverse to the cutting edge" can encompass orthogonality for one or both sides. Alternatively, however, "transverse to the cutting edge" also encompasses one or two sides that are not perpendicular to the cutting edge. The cutting edge can, for example, be connected to at least one or exactly one of the two sides via a rounded portion. Particularly preferably, the cutting edge is connected to both sides via a rounded portion, so that, in other words, two rounded portions are present.

[0030] The cutting device can be made of a material in accordance with DIN EN ISO 8442-2 - 2017-09. For example, the material can comprise: carbon steel, rust-resistant or stainless steel, high-speed steel (HSS), tool steel, hard metal(s), ceramic(s). The cutting edge can be one-dimensional or multi-dimensional. For example, the cutting edge can have a single, double or triple facet and / or be convex, concave or straight. The cutting device can have a cutting edge on one or both sides. With a single-sided cutting edge, the cutting edge runs like a pent roof with respect to the blade. With a double-sided cutting edge, the cutting edge runs like a gable roof with respect to the blade. The cutting device can additionally or alternatively have one or two cutting edges.The cutting device can, for example, have protective areas arranged on the blade, in particular rubber protective areas, or it can also be the blade itself.

[0031] The rounded edge can be adapted to various conditions. The rounded edge is primarily designed to prevent a user from cutting themselves on the cutting edge when removing the packaging from the blade. Furthermore, the cutting device is secured during transport. The packaging is preferably made of packaging paper. Preferably, the packaging is made of wrapping paper.

[0032] The rounding can be produced, for example, as a deburring. The rounding can be rounded. This means that the outer contour edge runs continuously at the rounding. In particular, the meeting side edges or the cutting edge and the side edge merge continuously into one another. Alternatively, a rounding can be formed by an obtuse angle between a cutting edge and a side edge or two side edges. The obtuse angle is preferably greater than 140 degrees, more preferably greater than 150 degrees or greater than or equal to 150 degrees. An obtuse angle of 165 degrees is also preferred, particularly if the obtuse angle is formed in the cutting region of the blade, i.e. in the form of a cutting notch. The outer contour edge of the cutting notch and the cutting edge then enclose the obtuse angle.With multiple roundings, it is conceivable that one or more roundings are formed by an obtuse angle and the other rounding(s) are formed as a continuous contour edge. A rounding can also be provided on the blade itself. For example, a cutting notch can be provided on the cutting part of the blade. The cutting notch can be formed as an edge section of the blade that runs obliquely to the cutting edge. The cutting notch can be linear.

[0033] Optionally, the rounding can only be a continuous outer contour edge or alternatively it can be designed exclusively in a non-continuous manner, i.e. in the form of an obtuse angle.

[0034] The blade or cutting device is preferably flat.

[0035] According to a modified embodiment, the cutting edge extends over at least one of the rounded portions, and in particular when the cutting edge is connected to one of the two sides via a rounded portion, the rounded portion having the cutting edge has a larger radius than a rounded portion not having the cutting edge. In other words, the cutting edge extends over at least one of the rounded portions. In particular when the cutting edge merges into the rest of the component via a rounded portion on both sides, the rounded portion on which the cutting edge is located should have a larger radius than the rounded portion that does not have a cutting edge. In a modified embodiment, the cutting edge extends over at least one rounded portion, which may have a larger radius than a rounded portion without a cutting edge.The difference in radii can be 1 mm, 2 mm, or 3 mm, for example, which brings different advantages. A rounding with a 1 mm larger radius slightly reduces stress peaks and improves the stability of the cutting edge, which is advantageous for precise cutting tasks with low material loss. If the radius is increased by 2 mm, the load is distributed even more evenly, thereby increasing the service life of the cutting edge and minimizing the risk of breakage. A difference of 3 mm ensures maximum stress reduction, ideal for highly stressed cutting edges or applications with strong shock loads. In general, an asymmetric rounding improves the load-bearing capacity of the cutting edge and reduces wear by reducing the notch effect. It also facilitates material flow in moving cutting or forming processes, resulting in a more consistent cut quality.The choice of the appropriate radius depends on the specific requirements: While smaller differences are suitable for delicate work, larger differences offer greater stability and durability. This allows the cutting edge to be optimally tailored to the load and intended use, achieving the most efficient and precise cutting performance possible. For example, the cutting device can have a radius of 1 mm at the rounded section without a cutting edge and a radius of 3 mm at the rounded section with a cutting edge.

[0036] According to a modified embodiment, it is provided that a radius of the rounding is adapted depending on a mass of the cutting device, so that the radius increases with increasing mass.

[0037] A radius of the rounding is adapted depending on the mass of the cutting device, so that the radius increases with increasing mass. The mass is determined by the length, width, thickness, and density of the cutting device. For example, a cutting device can have a length of 0.1 m. In this case, the mass of the cutting device is 16 g. The radius of the rounding can be 1 mm in this case. According to other examples, the cutting device has a mass of 103 g and a length of 935 mm. The radius of the rounding can be 5 mm in this case. Preferably, there is a proportional relationship between the design of the radius of the rounding and the mass of the cutting device. The radius can alternatively be exponentially or quadratically dependent on the mass of the cutting device. In addition to the mass, the radius of the rounding can be designed to suit the hardness of the blade of the cutting device.

[0038] Preferably, at least one rounded portion, particularly preferably two rounded portions, has a radius configured according to the mass of the cutting device. This is the rounded portion adjacent to the cutting edge in the case of a mechanically operated cutting device or the rounded portion at the cutting edge in the case of a manually operated cutting device. Particularly preferably, all rounded portions, in particular all four rounded portions, of the cutting device are configured with the same radius. Should the cutting edge extend over part of the rounded portions of the cutting device, a radius of these rounded portions is configured depending on the mass. A radius of the rounded portions with the cutting edges is preferably larger than a radius of the rounded portions where no cutting edge is configured.

[0039] In addition to the mass, the rounding can be adapted depending on the material properties of the blade. Due to their brittleness, ceramic cutting devices should preferably have a greater rounding than stainless steel cutting devices, especially when inserted into opaque, fiber-containing packaging. At the same time, the rounding must be strong enough to prevent puncture of the packaging material, but not so large that the cutting function is impaired.

[0040] Due to its suitability, particularly the rounded edge, which is designed depending on the mass of the cutting device, the cutting device can be shipped to the user in a fiber-containing packaging. Each cutting device is packed in the packaging, and the packaging preferably encloses the cutting device in air cushioning. The rounded edge on the blade prevents the blades of the cutting device from piercing the fiber-containing material like a needle if the shipping carton is thrown or suffers a strong impact, for example, by being dropped on the floor.

[0041] According to a modified embodiment, the cutting edge is designed as a straight cutting edge. Such cutting edges are particularly advantageous during membrane skinning / derinding.

[0042] According to a modified embodiment, the rounding or roundings are formed exclusively on the cutting edge. The rounding here delimits (each) one cutting edge. The rounding only runs on a part of the cutting edge that is beveled with respect to the blade. With only a rounding on the cutting edge, little material is removed from the blade. At the same time, delimiting the cutting edge by the rounding promotes safe handling of the cutting device when it is located in opaque fiber packaging. Particularly in the case of longer cutting devices used in a de-soiling / membrane skinning machine, the cutting device can be bulky due to its length, ranging from one-third to one meter. In this case, the cutting edge delimited by the rounding can increase the user's safety when removing this bulky blade from the packaging.

[0043] According to a modified embodiment, the cutting edge, in particular the cutting edge, has a straight edge between the rounded portion and the side, in particular a side edge of the side. This facilitates a precise insertion of the cutting device into a membrane skinning / de-shrimp machine.

[0044] According to a modified embodiment, some or all of the sides surrounding the blade, in particular the edges, are connected to one another via rounded portions. This has the advantage that the cutting device can be packaged in a simpler package, i.e., in a package with a lower basis weight or lower tear resistance.

[0045] This also ensures particularly safe handling by the user when removing the cutting device from the opaque, fiber-containing packaging. Furthermore, storage and transport in fiber-containing packaging are considerably safer if all corners of the cutting device are rounded.

[0046] According to a modified embodiment, the radius of the rounding is in a range of 1 mm to 5 mm inclusive. The selected radii have proven particularly advantageous in conjunction with paper packaging. The rounding with the selected radius can also help the blade stay sharp longer, as it reduces the risk of micro-chips or cracks. This extends the lifespan of the blade, and it requires less frequent replacement.

[0047] Regarding the embodiments described below, which address specific aspect ratios between rounding and the length of the cutting device, the following should be noted: The longer the cutting device, the more dangerous it is during transport and handling. This is due to the fact that the mass of the cutting device is proportional to its length. The longer the cutting device, the more mass it has. The packaging reduces a significant portion of the mass, considering its volume, so that the cutting device can be transported more safely. However, a longer cutting device with more mass also pierces the packaging material more quickly due to its higher momentum upon impact.The radius of the rounding of the cutting device therefore has an aspect ratio to a length of the cutting device, in particular the cutting edge, or width of the blade, and facilitates safe transport of the cutting device in the packaging. The design of the aspect ratio preferably relates to one or two roundings on the cutting edge. It is possible for all roundings provided on the cutting device to have the aspect ratio. Roundings along which the cutting edge runs are preferably designed with a larger radius according to the aspect ratios described below than roundings on the same blade where no cutting edge runs, for example because this rounding delimits a cutting edge or a blade spine.

[0048] According to a modified embodiment, it is provided that a radius of the rounding has an aspect ratio to a length of the cutting edge, in particular the cutting edge, or to a length of the blade in a range of 6.7 x 10 A-4 to 0.2. In other words, the longer the cutting edge, the larger the radius of the rounding. For example, the cutting device can have a length of 430 mm. In this case, the radius can be, for example, 3 mm. The selected aspect ratio significantly improves and simplifies the transportability of the cutting device, in a vehicle, even in a shipping carton. In particular, transport is considerably more cost-effective, as fewer security measures have to be taken by a freight forwarder or parcel shipping service provider to safely transport the package containing the cutting devices. The package containing the cutting devices can be subjected to impact / shock impulses and at the same time it is ensured that the cutting devices do not protrude from the packaging or carton.

[0049] According to a modified embodiment, it is provided that a radius of the rounding has an aspect ratio to a width of the blade in a range of 2.5 x 10 A-2 to 0.63. In other words, the wider the blade, the larger the radius. This aspect ratio, analogous to the previously described aspect ratio, improves the transportability of the cutting device in the packaging. By carefully adjusting this ratio, it is ensured that the cutting edge retains its functional sharpness, while at the same time excessive point loading on the cutting edge is avoided. This reduces the risk of the blade puncturing or damaging the paper packaging. An optimized rounding radius distributes mechanical stresses along the cutting edge more evenly and prevents a locally concentrated perforation force on the packaging. This is particularly advantageous for transport and storage, as the packaging reliably fulfills its protective function and unintentional exposure of the cutting edge is avoided.In addition, this targeted geometry contributes to safety by minimizing the risk of injury during handling while the blade maintains its cutting performance.

[0050] According to a modified embodiment, the radius of the rounding has an aspect ratio to the thickness of the blade in a range of 0.63 to 25. In other words, the thicker the blade, the larger the radius. This aspect ratio, analogous to the previously described aspect ratio, improves the transportability of the cutting device in the packaging. Ultimately, this modified embodiment has the same advantages as the previous one. The selected aspect ratio between the rounding radius and the thickness of the blade prevents the paper packaging from being punctured. The targeted rounding evenly distributes the mechanical stress along the cutting edge, reducing local perforation forces. This increases safety during transport and handling without compromising cutting performance. At the same time, the packaging remains intact and reliably fulfills its protective function.According to a modified embodiment, a blade of the cutting device is designed to be rectangular. It is preferred that the cutting edge and the cutting edge of the blade are linear, the first and second sides transverse to the cutting edge are of equal length and perpendicular to the side forming the cutting edge, and a side running parallel to the cutting edge, which forms the blade spine, is of the same length as the cutting edge.

[0051] With a rectangular design of the blade of the cutting device, all corners, i.e., the transitions between the cutting edge and the transverse sides and between the transverse sides and the blade, are preferably rounded. The rounding is particularly preferably circular.

[0052] A rectangular blade promotes a uniform cutting depth and force distribution, making derinding and membrane skinning more precise and consistent. The stable guidance within the machine keeps the cutting edge precisely aligned, which promotes longer service life and even wear. Furthermore, the rectangular shape reduces material waste and rework, as the cut remains clean across the entire width. In contrast, a trapezoidal blade can lead to uneven wear, variable cutting depth, and inefficient material utilization.

[0053] According to a modified embodiment, the cutting device is arranged in a package made of a biodegradable, fiber-containing wrapping material layer arrangement. Preferably, the packaging is a paper package. Furthermore, the wrapping material layer arrangement is preferably quadrangular, in particular rectangular. If the cutting device arrangement does not have a package, the cutting device is understood to be a cutting device arrangement. In other words, the cutting device alone defines the cutting device arrangement.

[0054] The packaging solution enables environmentally friendly and sustainable

[0055] The cutting device is easily accommodated, as the fibrous cover material is recyclable. Furthermore, the layered arrangement ensures stable fixation, eliminating the need for additional plastic or other holding devices.

[0056] According to a modified embodiment, it is provided that the radius of the rounding is inversely proportional to a value of a tear strength according to DIN EN ISO 1974 - 2012-09 of the cover material layer arrangement according to the following relationship where k is a material-specific proportionality factor,

[0057] F_MD is a tear strength in a longitudinal direction of the packaging and along the fibers of the wrapping material, with F_MD from 3000 N / m to 8000 N / m, where E > 10 A -3 m.

[0058] In other words, the higher the tear strength of the paper, the smaller the radius of the rounding can be, including or excluding the cutting edge. Conversely, the larger the radius of the rounding, including or excluding the cutting edge, the lower the tear strength of the cover material layer arrangement can be. In other words, in particular, the higher the basis weight of the paper, the smaller the radius of the rounding can be, including or excluding the cutting edge. Conversely, the larger the radius of the rounding, including or excluding the cutting edge, the lower the basis weight of the cover material layer arrangement can be. This can have the advantage of preventing the cutting device from protruding from the packaging during handling. The risk of injury to the user is also reduced when unpacking the cutting device from the packaging material.For example, a radius of 3 mm can be used for a packaging weight of 70 g / m. A 2 can be selected, with a mass of the cutting device of 60 g, and a design of the cutting device made of stainless steel, whereby the tear resistance also increases with increasing basis weight.

[0059] The proportionality factor k is a material-dependent constant that defines how strong the rounding radius must be depending on the tear resistance of the packaging. Higher k values ​​are required for more sensitive materials in the envelope layer arrangement, while more resilient envelope layer arrangements allow for smaller k values. For example, k for stainless steel can be 2 x 10 3 up to 5 x 10 3 depending on the cutting edge geometry and k for zirconium oxide ceramic 7 x 10 3 up to 15 x 10 3depending on the cutting edge geometry, since ceramic requires greater rounding.

[0060] The choice of the material-specific proportionality factor depends not only on the cutting edge material, such as stainless steel or zirconium oxide, but also on the tear strength of the packaging material. The above formula shows that a higher value results in a larger fillet radius, especially at lower tear strengths.

[0061] For example, it can be provided that the packaging is at least partially or completely opaque or less transparent, in particular less transparent than a transparent plastic film. Opaque preferably means essentially opaque, so that a user cannot verify the properties of the cutting device, such as the type and orientation of the cutting edge, without opening the packaging. Less transparent can mean, for example, milky or partially transparent. Regardless of other features, opaque or less transparent packaging has the advantage that it can be printed. For example, the orientation of the blade in the packaging, to avoid cuts when unpacking, and / or blade parameters, in particular the blade model, can be printed on the packaging so that the user always selects the right blade.One advantage of printing is that expensive laser printing processes on the blade are no longer necessary, making the overall production cheaper and faster.

[0062] The cover material layer arrangement has at least one material layer. The quadrangular, in particular rectangular, cover material layer arrangement has two equally long, longer sides extending along a longitudinal axis and two equally long, shorter sides. A rectangular design of the cover material layer arrangement has the advantage that the cutting device can be packaged with the cover material layer arrangement as a roll without any material loss. In particular, the cover material layer arrangement has fibers or the

[0063] Cover material layer arrangement is made of wood fibers, for example, the

[0064] Cover material layer arrangement a barrier paper,

[0065] The packaging paper can have a basis weight of 70 g / mA 2 and is heat-sealable. The paper can be based on virgin fibers and serves as an environmentally friendly and sustainable alternative to existing plastic packaging made of films and film composites. An example of such a barrier paper is described in DE 10 2017 131 277 A1. The paper has a thickness in the range of 70 x 10 A-3 m, has a KIT value for grease permeability or grease resistance in a range of 10 to 14. The grease resistance of a paper can be measured using the KIT test (Tappi). This test involves dropping very thin oil (palm oil) onto the paper surface to be tested. If a "halo" forms around this drop on the back, i.e. on the side opposite to the side onto which the oil was dropped, the test is deemed to have failed. Diluting the palm oil with solvents (e.g. toluene) makes the oil more aggressive and it penetrates the paper surface more easily. A KIT value of 1 means that even the undiluted palm oil was able to penetrate the paper surface. With a KIT value of 9, the surface can withstand even the "aggressive" liquid, making the paper very grease-repellent. The KIT value of greaseproof paper is normally 5 to 7 KIT. The heat sealing strength is approximately 5N / 15mm.

[0066] According to a modified embodiment, the packaging comprises: a packaging body and an opening flap formed on the packaging body for opening the packaging, wherein the cover material layer arrangement comprises at least one material layer with two longer sides of equal length extending along a longitudinal axis and two shorter sides of equal length, wherein the cover material layer arrangement has two first fold lines to embed the cutting device between the first fold lines, wherein the cover material layer arrangement is U-shaped with a U-shaped outer beam and two U-shaped main beams due to the folding at the first fold lines in cross-section to the longitudinal axis, wherein a distance FI-II of the first fold lines is 120 to 145 percent, in particular 135 percent of a width of the cutting device, wherein the cover material layer arrangement has at least one second fold line,wherein the second fold line is zigzagged to one of the first fold lines, wherein a region of the cover material layer arrangement delimited by the fold lines forms the packaging body for receiving the cutting device, a region of the cover material layer arrangement lying outside the delimited region forms the opening flap, and wherein the two longer sides of the cover material layer arrangement are connected to one another in a connecting region lying in the region of the opening flap.

[0067] The two longer sides of the cover material layer arrangement are connected to each other in a connecting area, e.g., adhesively. This connecting area is located within the opening flap.

[0068] The packaging is specifically designed for the distribution channel of the cutting device and its handling. The packaging is therefore primarily designed for the safe transport of the cutting device. The packaging forms an air chamber around the cutting device. The cutting device is therefore cushioned by the packaging. In other words, the packaging has an air chamber in addition to the cutting edge. The air chamber minimizes the mass per volume. On the other hand, the generously enclosing packaging with plenty of play allows the cutting device to move within the packaging. If the cutting device is packaged in a shipping carton, it can puncture the packaging and carton if subjected to a sudden impulse, caused by the carton being thrown or hit on the floor. The cutting device must have rounded side edges to prevent it from puncturing the packaging.The rounding can be circular or arcuate or have other described shapes.

[0069] The packaging is opaque or less transparent than conventional plastic packaging. The packaging provides the user with a preferred orientation for holding and opening the packaging through its folded-down wing, which is formed by the connecting area, which is intuitive for the user. The tearing of the connecting area therefore always occurs transversely to a plane of extension of the blade of the cutting device. The size of the connecting section is preferably selected such that it can be torn conveniently and easily by a user. The preferred orientation of the connecting area with respect to the cutting edge / a main packaging body noticeably increases safety when handling the sharp cutting edge in the packaging. Furthermore, the packaging being wider than the cutting device cutting edge spaces the cutting edge away from the packaging body.The packaging thus forms an air chamber surrounding the cutting edge, protecting the cutting device during transport. It should be noted that the packaging is particularly suitable for cutting devices with a straight, flat blade.

[0070] The non-transparent packaging materials can be paper or cardboard. In other words, both the design of the cutting edge and the design of the packaging allow a user to unpack the cutting device from the packaging with a reduced risk of injury.

[0071] The cover material layer arrangement can be designed to completely enclose the cutting edge of the cutting device or the entire cutting device. Additionally, the use of one or more viewing windows is conceivable to make blade specifications, such as the manufacturer, type of cutting device, number of cutting edges, etc., understandable to the user through the window without having to open the packaging.

[0072] According to a modified embodiment, the cover material layer arrangement is designed as a continuous surface. In other words, the packaging is designed without a viewing window. Viewing windows are to be understood as those openings in the cover material layer arrangement that would make it possible to determine the orientation of the cutting device in the packaging or other properties of the cutting device without opening the packaging, i.e. from the outside. In other words, there are no holes in the cover material layer arrangement. This advantages cost-effective packaging. The opening tab provides the user with sufficient orientation for handling the packaging. The user can open the packaging safely using the opening tab.

[0073] The packaging is preferably designed to accommodate a single cutting device only. In other words, the packaging is designed to accommodate a single cutting device only, thus minimizing the risk of damage or uncontrolled handling. This increases safety, as there are no additional blades that could accidentally detach or cause injury. Furthermore, the weight is optimized in relation to the packaging volume, thus achieving material savings and more efficient storage and transport.

[0074] According to a modified embodiment, the cover material layer arrangement does not have any holding means for holding the cutting device in addition to the packaging body. In other words, the cover material layer arrangement is designed such that, in addition to the packaging body, it does not contain any separate holding means for fixing the cutting device. The blade is fixed exclusively by the geometry and material tension of the packaging, thus eliminating the need for additional adhesive, clamping, or holding structures. The cutting device is simultaneously enclosed in an air chamber and arranged in the cover material layer arrangement. The modified embodiment enables a structurally simplified packaging, which promotes fast and material-saving production. At the same time, the cutting device remains securely embedded in the packaging without the need for additional fixing elements.A key advantage of this design is the reduction in packaging material and production steps, resulting in lower manufacturing costs and a more sustainable packaging solution. Furthermore, disposal and recycling are facilitated, as there are no different materials to separate, further increasing environmental friendliness.

[0075] According to a modified embodiment, the cover material layer arrangement has fold lines to enclose the cutting edge of the cutting device with at least two layers of the cover material layer arrangement. This provides even better mechanical protection for the cutting edge.

[0076] According to a modified embodiment, the cover material layer arrangement has additional connecting regions running transversely to the fold lines, wherein the connecting regions together enclose a packaging chamber for packaging the cutting device, wherein the distance between the additional connecting regions is 103 to 106 percent, in particular 105 percent, of the length of the cutting device. This advantageously enlarges the area where the packaging can be torn. This further reduces the risk of injury.

[0077] According to a modified embodiment, it is provided that the cover material layer arrangement has a T-shape in cross section transverse to the longer sides, wherein a vertically or transversely running T-trunk leg is formed by the connecting region of the cover material layer arrangement and a horizontally running T-cross leg is formed by the cover material layer arrangement excluding the connecting region.

[0078] According to a modified embodiment, the T-stem leg has a length in a range from 2 / 3 B to B / 2 +x, where B is a length of the T-cross leg and x is greater than B / 2. This configuration favors safer handling of the packaged cutting device and improved leverage when tearing the packaging material, for example, when the tear strength is greater transverse to the fiber direction, while at the same time the cutting device is better protected against damage.

[0079] According to a modified embodiment, the T-stem leg is arranged on the T-cross leg in a range of B / 2 to 2 / 3 B when measured lengthwise from left to right. The arrangement of the T-stem leg has the advantage that, in its folded-down form, it better cushions the packaged cutting device when several packaged cutting devices are stacked on top of one another. According to a modified embodiment, the T-stem leg is arranged on the T-cross leg to form a U-shape, wherein the U-shape with its legs is designed to enclose the T-cross leg. The main aim here is to provide the side of the blade on which the cutting edge is with two layers of packaging. In other words, the packaging should enclose the cutting edge with two layers of material. A first layer of material is the layer of material of the T-cross leg.The second material layer is the material layer of the T-bar, which also covers the cutting edge. This modified design provides even better cushioning and protection for the cutting device in the packaging.

[0080] Short description of the drawings

[0081] The invention will be explained in more detail below with reference to preferred embodiments and the accompanying drawings. The term "figure" is abbreviated to "Fig."

[0082] The drawings show

[0083] Fig. 1 is a schematic view of a cutting device of a cutting device arrangement according to a first embodiment in two views;

[0084] Fig. 2a is a schematic view of a cutting device of a cutting device arrangement according to a second embodiment in two views;

[0085] Fig. 2b shows the view of the cutting device of the cutting device arrangement according to the second embodiment in two views with dimensions;

[0086] Fig. 3 shows a schematic view of a cutting device of a cutting device arrangement according to a third embodiment in two views; Fig. 4 shows a schematic view of a cutting device of a cutting device arrangement according to a fourth embodiment in two views;

[0087] Fig. 5 is a schematic view of an envelope material layer arrangement of a package of the cutting device of the cutting device arrangement according to a first embodiment;

[0088] Fig. 6a is a schematic first view of the packaging of the cutting device according to the first embodiment;

[0089] Fig. 6b is a schematic second view of the packaging of the cutting device according to the first embodiment;

[0090] Fig. 7a is a schematic view of a packaging of the cutting device according to a second embodiment in a first fold; and Fig. 7b is a schematic view of the packaging of the cutting device according to the second embodiment in a second fold.

[0091] Detailed description of the implementation examples

[0092] The described embodiments are merely examples which can be modified and / or supplemented in many ways within the scope of the claims. Each feature described for a specific embodiment can be used independently or in combination with other features in any other embodiment. Each feature described for an embodiment of a specific claim category can also be used correspondingly in an embodiment of a different claim category. Where appropriate, the sections of the device / packaging in all figures, but not exclusively, have been provided with reference symbols. For the sake of clarity, however, sections with the same name have only been provided with reference symbols in part, in particular where also mentioned in the description of the figures.

[0093] Figure 1 shows a schematic view of a cutting device 1 of a cutting device arrangement according to a first embodiment in two views. The first view (Figure 1, left) is a plan view of the cutting device 1, illustrating the structure of the cutting device in the longitudinal direction along the longitudinal axis L. In all exemplary embodiments, the cutting device arrangement can have a fastening section for fastening the cutting device 1 to a handle. The fastening section is not shown. When the cutting device arrangement is used in a machine, the fastening section can be arranged, for example, on a blade back 8 of the cutting device. Holes or other contours adapted to a machine can serve as fastening means of the fastening section, whereby the type and design of the fastening means depend on the specifications of the machine.

[0094] The second view (Figure 1, right) is a plan view of the cutting device 1, illustrating the structure of the cutting device in the transverse direction to the longitudinal axis L, at the intersection point of the axis L with an axis A. The cutting device

[0095] 1 is suitable for derinding and membrane-skinning foodstuffs, e.g., meat, in particular beef, pork, or lamb, or fish. For this purpose, the cutting device 1 is mounted in a machine, which is not shown here. The machine can be a machine suitable for skinning and derinding. The cutting device 1 has a blade 2. The blade 2 has a cutting edge 3. A blade 2 with two cutting edges 3 is also conceivable, for example. The cutting edge(s) 3 and the sides 4a, 4b running transversely to the cutting edge(s) 3 together enclose a blade blade 5. In the case of one cutting edge 3, the cutting edge 3, a blade spine 8, e.g., running parallel to the cutting edge 3, and the sides 4a, 4b running transversely to the cutting edge 3 together enclose the blade blade 5.

[0096] In the present embodiment, the cutting edge 3 extends parallel to the longitudinal axis L of the blade 2. In the present embodiment, the blade

[0097] 2 has a single-edged cutting edge shape. The blade 2 can, depending on the intended use, also have a double-edged blade 2. In the present exemplary embodiment, it is also a cutting edge 3 with a single facet. This can be understood from the top view of the blade 2 along the transverse axis A running to the longitudinal axis L (see Figure 1, right-hand view). The cutting edge 3 of the blade 2 is formed from two surfaces Fl and F2, which meet at a cutting edge 3a. In cross-section, i.e. in the section through the blade 2 along the axis A, the surface Fl runs parallel to a first blade surface 5a and at the same time merges into the blade surface 5a without a step. In cross-section, i.e. in the section through the blade 2 along the axis A, the surface F2 runs obliquely to a second blade surface 5b and at the same time merges into the second blade surface 5b with a bevel 7. The bevel 7 is square.

[0098] In all embodiments of Figures 1 to 4, the blade 2 is designed with a straight cutting edge 3a running parallel to the longitudinal axis L of the blade 2. The cutting edge 3a has rounded portions 6 at each of its ends. The rounded portions 6 are arranged in the cutting area of ​​the cutting edge 3. In other words, the rounded portions 6 run through the cutting edge 3. In the present case, they extend to the sides 4a and 4b. In other words, the rounded portions 6 extend from the cutting edge 3a to the bevel 7, which delimits the cutting edge 3 of the blade blade 5 that does not function as a cutting edge 3. It is conceivable that the cutting edge 3a merges at only one end via a rounded portion 6 into one of the first sides 4a or the second side 4b.

[0099] Sides 4a or 4b are designed depending on the installation method in the machine. For example, blades 2 with one notch 9 (see Figures 1 and 2a, 2b) or two notches 9a, 9b (see Figure 4) are conceivable. Blades 2 without notches 9, 9a, 9b are also conceivable (see Figure 3).

[0100] In the embodiments shown, the cutting edge 3a has the greatest length. It is also conceivable that the cutting edge 3a has a shorter length than an edge lying opposite the longitudinal axis L. The blades 2 can be trapezoidal, or the blade 2 can have an alternative outer contour edge shape. A blade 2 is conceivable in which the cutting edge 3a transitions into the side 4a or 4b at an obtuse angle of 150 degrees. Accordingly, the cutting edge 3a does not transition into the side 4a or 4b continuously, but rather at an angle across the obtuse angle. The rounding 6 is therefore formed by the obtuse angle. The obtuse angle between the cutting edge 3a and the side 4a or 4b can be formed by a notch 9a or 9b. Furthermore, such a blade 2 can have further roundings 6. The notch 9a or 9b can then transition into another notch 9a or 9b via the roundings 6.

[0101] A conceivable embodiment is in which the cutting edge 3a merges on a first side via an obtuse angle of 150 degrees into a notch 9a. The notch 9a then merges continuously, i.e., roundly, into a further notch 9a. Both notches 9a can in turn enclose an acute angle with one another. The notch 9a of the two notches 9a that is further away from the cutting edge 3a then in turn merges into an outer contour edge of the blade 2 that runs parallel to the cutting edge 3a and is straight. This straight outer contour edge then in turn merges via a corner, for example at an angle of 90 degrees, into a side 4b, which in turn merges via an obtuse angle into a bevel 9b. The chamfer 9b then merges into the cutting edge 3a via the obtuse angle of 150 degrees, ie via a rounding 6 into the cutting edge 3a.

[0102] A possible embodiment is one in which the cutting edge 3a transitions on a first side via an obtuse angle of 150 degrees into a notch 9a. The notch 9a then transitions via a corner into a side 4a, with the notch 9a and the side 4a forming an angle of 120 degrees. The side 4a then transitions into the outer contour edge, which runs parallel to the cutting edge 3a and is straight.

[0103] An embodiment is conceivable in which the cutting edge 3a on a first side via a rounded portion 6, i.e. continuously, transitions into a notch 9a. Then the notch 9a discontinuously, i.e. at an angle of 120 degrees, transitions into a side 4a. The side 4a transitions into a further notch 9a with an angle of 135 degrees. Both notches 9a can in turn enclose an acute angle to one another. The notch 9a furthest from the cutting edge 3a of the two notches 9a then in turn transitions into an outer contour edge of the blade 2 which runs parallel to the cutting edge 3a and is straight. An embodiment is conceivable in which the cutting edge 3a on a first side transitions into a notch 9a via an obtuse angle of 150 degrees. Then the notch 9a merges discontinuously, ie with an angle of 120 degrees, into a side 4a.Side 4a transitions into another notch 9a with an angle of 135 degrees. Both notches 9a can, in turn, form an acute angle to each other. The notch 9a of the two notches 9a that is farthest from the cutting edge 3a then transitions into a straight outer contour edge of the blade 2 that runs parallel to the cutting edge 3a.

[0104] It is conceivable that a cutting notch with an obtuse angle of 150 degrees to the cutting edge 3a is provided only on one side of the cutting edge 3a, i.e., on side 4a or side 4b, or on both sides. In other words, the cutting notch is part of the cutting part of the blade 2. The cutting notch then optionally transitions into side 4a or 4b, either at an angle of 120 degrees or via a rounded portion 6.

[0105] It is also conceivable that a cutting notch is formed on the blade 2, which has an obtuse angle of 165 degrees.

[0106] Cutting notches are conceivable on both sides of the cutting edge 3a or only on one side of the cutting edge 3a.

[0107] In the conceivable embodiments described above, in which roundings 6 at acute angles of 150 degrees were also present, the length L2 of the blade 2 in the direction of the longitudinal axis L in the area of ​​the notch(s) 9a or 9b can be 10 mm + / - 0.3 mm.

[0108] Figure 2b shows a cutting device 1 with exemplary dimensions. The blade 2 of the cutting device 1 has a length LI in the direction of the longitudinal axis L of a nominal dimension with a tolerance of + / - 1.0 mm. For example, the length LI can be 430 mm. The second side 4b has a notch 9b. The length L2 of the blade 2 in the direction of the longitudinal axis L in the area of ​​the notch 9b is 14 mm + / - 0.3 mm. The width Bl of the blade 2 perpendicular to the longitudinal axis L in the area of ​​the notch 9b is also 14 mm + / - 0.3 mm. The width B2 of the blade 2 perpendicular to the longitudinal axis L is 20 mm + / - 0.1 mm. The projected radius R at the rounded portion 6 is 3 mm. In this case, the radius at each section where two edges meet is 3 mm. The thickness Dl of the blade 2 perpendicular to the longitudinal axis L is 1 mm + / - 0.03 mm.

[0109] Figure 5 shows an embodiment of a cover material layer arrangement 21 of a possible packaging 20 of the cutting device 1 of the cutting device arrangement. The layer arrangement 21 can be used for a packaging 20 of the embodiments of Figures 6a / 6b or 7a / 7b. The folding lines I, II, III, and IV would then have to be adapted according to the design of the embodiments of Figures 6a / 6b or 7a / 7b. The cover material layer arrangement 21 is first folded along the folding lines I, II. The distance between the folding lines I, II is selected such that the cutting device 1 can be arranged between the folding lines I, II. The cover material layer arrangement 21 is then folded along the lines III and IV, and the regions 22 of the cover material layer arrangement 21 are glued together. Alternatively, it is conceivable to first fold the cover material layer arrangement 21 along the folding lines III and IV and then along I and II.All fold lines I, II, III, IV extend along the longitudinal axis L of the cutting device 1, at least in cases where the cutting device 1 is designed as provided in the exemplary embodiments of Figures 1 to 4. In the exemplary embodiment of Figures 7a / 7b, at least one further fold line must be provided on the cover material layer arrangement 21 in order to be able to arrange the cover material layer arrangement 21 with two layers of the cover material layer arrangement 21 around the cutting edge 3 of the cutting device 1.

[0110] The longer sides 21A of the cover material layer arrangement 21 and the shorter sides 21B are perpendicular to one another in the present cover material layer arrangement 21. It is conceivable that, depending on the design of the cutting device 1, the sides 21A, 21B are configured accordingly.

[0111] Figure 6a shows a package 20 according to a possible embodiment. The package 20 has a package body 20A and an opening flap 20B. The opening flap 20B extends like a flag from the package body 20A. In the present example, the opening flap 20B corresponds to the connecting region 22. In other words, the connecting region 22 is the same size as the opening flap 20B. The opening flap 20B is therefore formed over its entire area in the present embodiment by two layers of the wrapping material layer arrangement 21. In other words, two partial surfaces of the wrapping material layer arrangement 21 are connected to one another in the connecting section 22. The connection between the partial surfaces can be adhesive.

[0112] As shown in Figure 5, the cover material layer arrangement 21 from which the packaging 20 of Figure 6a is formed is quadrangular. In Figure 6a, the layers of the cover material layer arrangement 21 are folded together and connected to one another. They are no longer recognizable as individual layers. However, the body 20A formed by the fold lines I, II, III is recognizable. In Figure 6b, the layers of the cover material layer arrangement 21 are folded together and connected to one another and are shown recognizably as individual layers. It can therefore be seen that the cover material layer arrangement 21 is U-shaped with one U-beam Uq and two U-main beams Us in cross-section to the longitudinal axis V due to the folding along the first fold lines I, II. The packaging 20 can be designed such that the longitudinal axis V of the packaging 20 extends parallel to the longitudinal axis L of the cutting device 1.A distance FI-II of the first fold lines I, II is 135 percent of a width B2 of the blade 2 or the cutting device 1. The distance FI-II corresponds to the width B of the cover material layer arrangement 21 or the door leg of the packaging. The door leg of the packaging 20 is formed from the U-shaped main legs Us in portions and the complete U-shaped outer leg Uq of the cover material layer arrangement 21.

[0113] In the embodiment of Figures 6a / 6b, the U-shaped trunk legs Us have different lengths. A first U-shaped trunk leg Us at fold line I has a length of 2 / 3 of the length of the U-shaped outer leg Uq or 2 / 3 of the length of the T-shaped cross leg of the packaging 20. A second U-shaped trunk leg at fold line II has a length of 1 / 3 of the length of the U-shaped outer leg Uq or 1 / 3 of the length of the T-shaped cross leg of the packaging 20. The opening flap 20B has a length of 2 / 3 B, i.e., 2 / 3 of the length of the U-shaped cross leg Uq or 2 / 3 of the length of the T-shaped cross leg of the packaging 20.

[0114] In the embodiment of Figures 7a / 7b, the U-shaped main legs Us have the same length. Both main legs Us have a length of one half the length of the U-shaped cross leg Uq or one half the length of the T-shaped cross leg of the packaging 20. The opening flap 20B has the length 1 / 2 B+x, i.e. an excess x to one half the length of the U-shaped cross leg Uq or an excess x to one half the length of the T-shaped cross leg of the packaging 20. The excess x is greater than B / 2. In this embodiment, the opening flap 20B is guided around the packaging body 20A. The cutting edge 3 is aligned in the packaging 20 in the direction of the fold line II. The cutting edge 3 is thus sheathed at the cutting edge 3a by two layers of the cover material layer arrangement 21. In other words, the blade 2 is protected with three layers of material, one layer of material being from an enveloping packaging body 20A and two layers of material coming from the flap 20B.

[0115] Only shown on one side in Figure 7a, but at both ends of the packaging 20, the cover material layer arrangement 21 has further connecting sections 23 running transversely to the fold lines I, II, III, IV, wherein the connecting sections 22, 23 together enclose a completely closed packaging chamber to the packaging 20 of the cutting device 1, wherein a distance of the further connecting regions 23 is 103 to 106 percent, in particular 105 percent of a length of the cutting device 1.

[0116] A fastening section of the cutting device arrangement is thicker than a section of the cutting device 1 in which the cutting edge 3a is located. The difference in thickness between the fastening section and the cutting edge 3a advantageously creates greater material tension in the packaging 20 in the region of the fastening section. Although this does not fix the cutting device arrangement in the region of its fastening section, the greater material tension in this region results in somewhat greater static friction, which advantageously improves handling in the packaging 20 and makes transport of the cutting device 1 safer. At the same time, a larger air volume is present in the region of the cutting edge 3a. In other words, the cutting edge 3a is enclosed with a proportionally greater amount of gas in its area than the fastening section. The cutting device 1 is therefore particularly padded.

[0117] List of reference symbols

[0118] 1 cutting device

[0119] 2 blades

[0120] 3 cutting edges

[0121] 3 a cutting edge

[0122] 4a first side across the cutting edge

[0123] 4b first side across the cutting edge

[0124] 5 blades

[0125] 5a first blade surface

[0126] 5b second blade surface

[0127] 6 Rounding

[0128] 7 Bending

[0129] 8 blade backs

[0130] 9 Notch

[0131] 9a first notch

[0132] 9b second notch

[0133] 20 Packaging

[0134] 20 A packaging body

[0135] 20B Opening flap of the packaging

[0136] 22 connecting section

[0137] 23 additional connecting section x excess to half the width of the T-cross leg of the packaging

[0138] A axis running transversely to a blade longitudinal axis

[0139] B Length of the T-cross leg of the packaging

[0140] L Blade longitudinal axis

[0141] R radius

[0142] Uq U-crossbar, formed by first fold lines

[0143] Us U-trunk beams formed by first fold lines

[0144] B 1 Width of the blade in the notch area B2 Width of the blade / cutting device overall

[0145] Dl Thickness of the blade

[0146] Fl first surface on cutting edge

[0147] F2 second surface at cutting edge FI-II distance of fold lines

[0148] LI Blade length

[0149] L2 Length of the notch in the direction of the longitudinal axis

Claims

Patent claims 1. Cutting device arrangement with a cutting device (1), in particular for a machine for derinding or membrane skinning, the cutting device (1) having a blade (2) extending in a longitudinal axis (L), the blade (2) having - at least one elongated cutting edge (3) extending along the longitudinal axis (L) of the blade (2) with a cutting edge (3a), - two sides (4a, 4b) extending transversely to the cutting edge (3), in particular two sides (4a, 4b) extending transversely to the Cutting edge (3) running side edges, and - a blade (5), the cutting edge (3) and the two sides (4a, 4b) forming the Blade blade (5), and wherein the cutting edge (3) is connected to at least one of the two sides (4a, 4b) via a rounding (6).

2. Cutting device arrangement according to claim 1, wherein the cutting edge (3a) extends over at least one of the rounded portions (6), and in particular when the cutting edge (3) is connected to one of the two sides (4a, 4b) via a rounded portion (6), the rounded portion (6) having the cutting edge (3a) has a larger radius than a rounded portion (6) not having the cutting edge (3a).

3. Cutting device arrangement according to claim 1 or 2, wherein the rounded portion (6) or rounded portions (6) is / are formed exclusively on the cutting edge (3); and / or wherein the cutting edge (3), in particular the cutting edge (3a), has a straight edge between the rounded portion (6) and the side (4a, 4b), in particular a side edge of the side (4a, 4b).

4. Cutting device arrangement according to one of the preceding claims, wherein the radius (R) of the rounding (6) has an aspect ratio to a length of the cutting edge (3), in particular the cutting edge (3a), or to a length (LI) of the blade (2) in a range of 6.7 x 10 A -4 to 0.

2.

5. Cutting device arrangement according to one of the preceding claims, wherein the radius (R) of the rounding (6) has an aspect ratio to a width (B2) of the blade (2) in a range of 2.5 x 10 A -2 to 0.63, and / or wherein the radius (R) of the rounding (6) has an aspect ratio to a thickness (Dl) of the blade (2) in a range of 0.63 to 25.

6. Cutting device arrangement according to one of the preceding claims, comprising a packaging (20), in particular a paper packaging, made of a, in particular square, biodegradable, fiber-containing, wrapping material layer arrangement (21), in particular designed as a continuous surface, wherein the cutting device (1) is arranged in the packaging (20).

7. Cutting device arrangement according to the preceding claim, wherein the radius (R) of the rounding (6) is inversely proportional to a value of a tear strength according to DIN EN ISO 1974 - 2012-09 of the cover material layer arrangement (21) adapted according to the following relationship where k is a material-specific proportionality factor, F_MD is a tear strength in a longitudinal direction of the packaging and along the fibers of the wrapping material, with F_MD from 3000 N / m to 8000 N / m, where E > 10 A -3 m.

8. Cutting device arrangement according to one of claims 6 or 7, wherein the packaging (20) comprises: a packaging body (20A) and an opening tab (20B) formed on the packaging body (20A) for opening the packaging (20), wherein the cover material layer arrangement (21) comprises at least one material layer with two equally long, longer sides (21A) extending along a longitudinal axis (V) and two equally long, shorter sides (21B), wherein the cover material layer arrangement (21) has two first folding lines (I, II) in order to position the cutting device (1) between the first folding lines (I, II) to be embedded, wherein the cover material layer arrangement (21) is U-shaped with a U-cross bar (Uq) and two U-main bars (Us) due to the folding at the first fold lines (I, II) in cross section to the longitudinal axis (V), wherein a distance FI-II of the first fold lines (I, II) is 120 to 145 percent, in particular 135 percent of a width (B2) of the cutting device (1), wherein the cover material layer arrangement (21) has at least one second fold line (III), wherein the second fold line (III) is zigzagged to one of the first fold lines (I, II), wherein a region of the cover material layer arrangement (21) delimited by the fold lines (I, II, III) forms the packaging body (20A) for receiving the cutting device (1), a region of the cover material layer arrangement (21) lying outside the delimited region forms the opening flap (20B) forms,and wherein the two longer sides (21A) of the cover material layer arrangement (21) are connected to one another in a connecting region (22) located in the region of the opening flap (20B).

9. Cutting device arrangement according to one of the preceding claims 6 to 8, wherein the wrapping material layer arrangement (21) has no holding means for holding the cutting device (1) in addition to the packaging body (20A).

10. Cutting device arrangement according to one of the preceding claims 6 to 9, wherein the cover material layer arrangement (21) has folding lines (I, II, III, IV) in order to wrap the cutting edge (3) of the cutting device (1) with at least two layers of the cover material layer arrangement (21).

11. Cutting device arrangement according to one of the preceding claims 6 to 10, wherein the cover material layer arrangement (21) has further connecting sections (23) running transversely to the fold lines (I, II, III, IV), wherein the connecting sections (22, 23) together enclose a closed packaging chamber for packaging the cutting device (1), wherein a distance of the further connecting regions (23) is 103 to 106 percent, in particular 105 percent of a length of the cutting device (1).

12. Cutting device arrangement according to one of the preceding claims 6 to 11, wherein the cover material layer arrangement (21) has a T-shape in cross-section transverse to the longer sides (21B), wherein a vertically or transversely running T-trunk leg is formed by the connecting region of the cover material layer arrangement (21) and a horizontally running T-transverse leg is formed by the cover material layer arrangement excluding the connecting region (22).

13. Cutting device arrangement according to the preceding claim, wherein the T-trunk leg has a length in a range of 2 / 3 B to B / 2 + x, where B is a length of the T-cross leg s and x is greater than B / 2; 14. Cutting device arrangement according to the preceding claim 12 or 13, wherein the T-trunk leg is arranged in a range of B / 2 to 2 / 3 B in a length measurement from left to right on the T-cross leg.

15. Cutting device arrangement according to one of the preceding claims 13 or 14, wherein the T-trunk leg is arranged on the T-cross leg to form a U-shape, the U-shape being formed with its legs to clasp the T-cross leg.

Images